b) In the context of outbreak of COVID – 19, a sample of 200 patients are selected. Out of them, 100 were given a drug and the others were not given any drug. The results are as follows: Number of patients Drug No Drug Total Cured 65 55 120 Not cured 35 45 80 Total 100 100 200 Test whether the drug is effective or not. (The Chi-square value as 5% level of significance for 1 degree of freedom is 3.841)

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Requirement: Test whether the drug is effective or not. (The Chi-square value as 5% level of significance for 1 degree
of freedom is 3.841)

b) In the context of outbreak of COVID – 19, a sample of 200 patients are selected. Out of them,
100 were given a drug and the others were not given any drug. The results are as follows:
Number of patients
Drug
No Drug
Total
Cured
65
55
120
Not cured
35
45
80
Total
100
100
200
Test whether the drug is effective or not. (The Chi-square value as 5% level of significance for 1 degree
of freedom is 3.841)
Transcribed Image Text:b) In the context of outbreak of COVID – 19, a sample of 200 patients are selected. Out of them, 100 were given a drug and the others were not given any drug. The results are as follows: Number of patients Drug No Drug Total Cured 65 55 120 Not cured 35 45 80 Total 100 100 200 Test whether the drug is effective or not. (The Chi-square value as 5% level of significance for 1 degree of freedom is 3.841)
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